If I recall rightly, according to Bishop James Ussher's chronology, in The Annals of the World, pages 128-129 (which I now cannot find online):

Haman's Edict occurred in 510 BC (Haman being a type of Antichrist. The Book of Esther.)

What I find interesting about this is that 510 BC is 2520 years before the year 2011 (and if you consider the fact that the edict was given about 11 months[?] prior to when it was to actually have been carried out, you might arrive at the year 2012.)
In light of the fact that many are looking to 2012 to be the mid-point of the tribulation period, I find that information to be quite intriguing.

And to add to that, I have read somewhere that there was also a "trio of AV 1 solar eclipses" in the years 513-511 BC, the years immediately preceding the year 510 BC. This would also be 2520 years before the present-day "trio of AV 1 solar eclipses" which are in the years 2008-2010. (These are supposedly a "warning sign" for the nation of Israel, I believe??? Or was it, "warning sign" to the nations??? Hmm... my brain is foggy, here. Maybe someone else can remember that detail?)

Might this information point to something significant for Israel in the year 2012? I tend to think so...